SIP User's Manual 96 Document #: LTRT-68806
Mediant 2000 & TP-1610 & TP-260/UNI
Table 5-9: Proxy & Registration Parameters
Parameter Description
Mutual Authentication
Mode
[MutualAuthentication
Mode]
Determines the gateway's mode of operation when Authentication and Key
Agreement (AKA) Digest Authentication is used.
Valid options include:
 [0] Optional = Incoming requests that don't include AKA authentication
information are accepted.
 [1] Mandatory = Incoming requests that don't include AKA authentication
information are rejected.
5.5.1.3 Coders
The Coders option allows you to configure the first to fifth preferred coders (and their
attributes) for the gateway. The first coder is the highest priority coder and is used by the
gateway whenever possible. If the far-end gateway cannot use the coder assigned as the
first coder, the gateway attempts to use the next coder and so forth.
You can also configure the Coders table using the ini file parameter CoderName (refer to
'SIP Configuration Parameters' on page 295).
¾ To configure the gateway's coders, take these 9 steps:
1. Open the 'Coders' screen (Protocol Management menu > Protocol Definition
submenu > Coders option).
Figure 5-10: Coders Screen
2. From the 'Coder Name' drop-down list, select the coder you want to use. For the full
list of available coders and their corresponding attributes, refer to the table below.
3. From the 'Packetization Time' drop-down list, select the packetization time (in msec)
for the coder you selected. The packetization time determines how many coder
payloads are combined into a single RTP packet.
4. From the 'Rate' drop-down list, select the bit rate (in kbps) for the coder you selected.
5. In the 'Payload Type' field, if the payload type for the coder you selected is dynamic,
enter a value from 0 to 120 (payload types of 'well-known' coders cannot be modified).
The payload type identifies the format of the RTP payload.
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